package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class jdbc_Demo3 {
    public static void main(String[] args) {
        try {
            Class.forName("com.mysql.cj.jdbc.Driver");
            Connection connection = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                    "root",
                    "root"

            );
            System.out.println("连接数据库成功");

            Statement statement =connection.createStatement();
            String sql="UPDATE user " +
                       "SET password ='666666',nickname = '老三' , age=50 " +
                       "WHERE id=1";
            int num=statement.executeUpdate(sql);
            if(num>0) {
                System.out.println("修改成功");
            }else{
                System.out.printf("修改失败");
            }

    }catch (Exception e){
            e.printStackTrace();
        }
}

}
